forked from v8/v8
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathsource-position.cc
More file actions
153 lines (140 loc) · 4.81 KB
/
source-position.cc
File metadata and controls
153 lines (140 loc) · 4.81 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/codegen/source-position.h"
#include "src/codegen/optimized-compilation-info.h"
#include "src/objects/objects-inl.h"
namespace v8 {
namespace internal {
std::ostream& operator<<(std::ostream& out, const SourcePositionInfo& pos) {
out << "<";
if (!pos.script.is_null() && pos.script->name().IsString()) {
out << String::cast(pos.script->name()).ToCString(DISALLOW_NULLS).get();
} else {
out << "unknown";
}
out << ":" << pos.line + 1 << ":" << pos.column + 1 << ">";
return out;
}
std::ostream& operator<<(std::ostream& out,
const std::vector<SourcePositionInfo>& stack) {
bool first = true;
for (const SourcePositionInfo& pos : stack) {
if (!first) out << " inlined at ";
out << pos;
first = false;
}
return out;
}
std::ostream& operator<<(std::ostream& out, const SourcePosition& pos) {
if (pos.isInlined()) {
out << "<inlined(" << pos.InliningId() << "):";
} else {
out << "<not inlined:";
}
if (pos.IsExternal()) {
out << pos.ExternalLine() << ", " << pos.ExternalFileId() << ">";
} else {
out << pos.ScriptOffset() << ">";
}
return out;
}
std::vector<SourcePositionInfo> SourcePosition::InliningStack(
OptimizedCompilationInfo* cinfo) const {
SourcePosition pos = *this;
std::vector<SourcePositionInfo> stack;
while (pos.isInlined()) {
const auto& inl = cinfo->inlined_functions()[pos.InliningId()];
stack.push_back(SourcePositionInfo(pos, inl.shared_info));
pos = inl.position.position;
}
stack.push_back(SourcePositionInfo(pos, cinfo->shared_info()));
return stack;
}
std::vector<SourcePositionInfo> SourcePosition::InliningStack(
Handle<Code> code) const {
Isolate* isolate = code->GetIsolate();
Handle<DeoptimizationData> deopt_data(
DeoptimizationData::cast(code->deoptimization_data()), isolate);
SourcePosition pos = *this;
std::vector<SourcePositionInfo> stack;
while (pos.isInlined()) {
InliningPosition inl =
deopt_data->InliningPositions().get(pos.InliningId());
Handle<SharedFunctionInfo> function(
deopt_data->GetInlinedFunction(inl.inlined_function_id), isolate);
stack.push_back(SourcePositionInfo(pos, function));
pos = inl.position;
}
Handle<SharedFunctionInfo> function(
SharedFunctionInfo::cast(deopt_data->SharedFunctionInfo()), isolate);
stack.push_back(SourcePositionInfo(pos, function));
return stack;
}
void SourcePosition::Print(std::ostream& out,
SharedFunctionInfo function) const {
Script::PositionInfo pos;
Object source_name;
if (function.script().IsScript()) {
Script script = Script::cast(function.script());
source_name = script.name();
script.GetPositionInfo(ScriptOffset(), &pos, Script::WITH_OFFSET);
}
out << "<";
if (source_name.IsString()) {
out << String::cast(source_name)
.ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL)
.get();
} else {
out << "unknown";
}
out << ":" << pos.line + 1 << ":" << pos.column + 1 << ">";
}
void SourcePosition::PrintJson(std::ostream& out) const {
if (IsExternal()) {
out << "{ \"line\" : " << ExternalLine() << ", "
<< " \"fileId\" : " << ExternalFileId() << ", "
<< " \"inliningId\" : " << InliningId() << "}";
} else {
out << "{ \"scriptOffset\" : " << ScriptOffset() << ", "
<< " \"inliningId\" : " << InliningId() << "}";
}
}
void SourcePosition::Print(std::ostream& out, Code code) const {
DeoptimizationData deopt_data =
DeoptimizationData::cast(code.deoptimization_data());
if (!isInlined()) {
SharedFunctionInfo function(
SharedFunctionInfo::cast(deopt_data.SharedFunctionInfo()));
Print(out, function);
} else {
InliningPosition inl = deopt_data.InliningPositions().get(InliningId());
if (inl.inlined_function_id == -1) {
out << *this;
} else {
SharedFunctionInfo function =
deopt_data.GetInlinedFunction(inl.inlined_function_id);
Print(out, function);
}
out << " inlined at ";
inl.position.Print(out, code);
}
}
SourcePositionInfo::SourcePositionInfo(SourcePosition pos,
Handle<SharedFunctionInfo> f)
: position(pos),
shared(f),
script(f.is_null() || !f->script().IsScript()
? Handle<Script>::null()
: handle(Script::cast(f->script()), f->GetIsolate())) {
if (!script.is_null()) {
Script::PositionInfo info;
if (Script::GetPositionInfo(script, pos.ScriptOffset(), &info,
Script::WITH_OFFSET)) {
line = info.line;
column = info.column;
}
}
}
} // namespace internal
} // namespace v8